<html>
<body>
<style>
body {
    background-color: #cfcfaf;
}
img {
    width: 300px;
    height: 300px;
}
.double {
    display: block;
    width: 600px;
}
</style>
<img class="double" src="filmstrip.svg">
<img class="double" src="sphere_and_klein.svg">
<img src="octahedra.svg">
<img src="parametric_sphere.svg">
<img src="sphere_shell.svg">
<img src="sphere_lighting.svg">
<img src="mobius_tube.svg">
<img src="overlapping_triangles.svg">
<img src="plot.svg">
</body>
</html>
